Re: GENERIC_PAE kernel panics on netbsd-9

[Andy Ruhl <acruhl%gmail.com@localhost>]

On Mon, Mar 9, 2020 at 6:37 AM Andy Ruhl <acruhl%gmail.com@localhost> wrote:
>
> I recently upgraded to 9.0_STABLE using a snapshot from
> nyftp.netbsd.org. This went fine.
>
> I then grabbed the netbsd-9 source tree from cvs and build a
> GENERIC_PAE kernel. I made no changes to GENERIC or GENERIC_PAE.
>
> The result is a panic in uvm during boot time. I didn't take a picture
> of the console or db output to type it out yet, I can do this if
> needed.
>

Copying tech-kern this time.

This is still happening. I updated netbsd-9 with CVS a few days ago
and built a new GENERIC_PAE kernel and it panics during boot.

I'll type out the last messages (minus time stamps):

uvm_fault(0xc1385da0, 0, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip 0xc0a6eec8 cs 0x0 eflags 0x10202 cr2 0 ilevel 0
esp 0xe36eadac
curlwp 0xca8763c0 pid 0 lid 70 lowest kstack 0xe36e92c0
kernel: supervisor trap page fault, code=0
Stopped in pid 0.70 (system) at netbsd:intel_ring_initialized+0x39:
 movl 0(%eax),%eax
db{0}>

I also took a picture of the bt if anyone is interested. It will take
a while to type out.

If I don't hear back in a few days or so I'll open a PR. I found
port-i386/51053 from a while ago but there's not enough information to
decide if this is the same. My panic not an "instant" panic, it boots
a while then panics after not finding some firmware. I get this same
firmware message in a normal GENERIC kernel boot so I assume it's not
a problem.

This machine has existed since before there was a such thing as amd64
and I haven't changed it. Maybe I will migrate it to an amd64 kernel
and userland at some point.

Thanks.

Andy